package com.winning.juc.other;

public class TestProductorAndConsumer {

    public static void main(String[] args) {
        Clerk clerk = new Clerk();

        Productor productor = new Productor(clerk);
        Consumer consumer = new Consumer(clerk);

        new Thread(productor,"生产者A").start();
        new Thread(consumer,"生产者B").start();
        new Thread(productor,"生产者C").start();
        new Thread(consumer,"生产者D").start();
    }


}

//店员
class Clerk{
    private int product = 0;
    //进货
    public synchronized void get() {
        while(product>=1){
            System.out.println("产品已满!");
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
            System.out.println(Thread.currentThread().getName() + " : " + ++product);
            this.notifyAll();
     }

    //卖货
    public synchronized void sale()  {
        while(product <=0 ){
            System.out.println("缺货！");
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
            System.out.println(Thread.currentThread().getName() + " : " + --product);
            this.notifyAll();
    }
}

//生产者
class Productor implements Runnable{

    private Clerk clerk;

    public Productor(Clerk clerk){
        this.clerk = clerk;
    }

    @Override
    public void run() {

        for (int i = 0; i < 20; i++) {
            clerk.get();
        }

    }
}

//消费者
class Consumer implements Runnable{

    private Clerk clerk;

    public Consumer (Clerk clerk){
        this.clerk = clerk;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            clerk.sale();
        }
    }
}
